According to the AJC and a Channel 2 Action News Report:
A DeKalb election supervisor alleged that he found an unsecured memory card Wednesday that contained results from the Briarlake Elementary precinct, according to Channel 2 Action News. It’s unknown whether the votes on the memory card were counted in the precinct’s totals, where voters supported LaVista Hills 378-313.
“As Secretary of State I take any allegation of elections fraud seriously,” Kemp said. “Our office has opened an official investigation of possible criminal activity during the Nov. 3 elections in DeKalb County.”
Piazza says some voters were turned away at their polling place, and voter material wasn’t properly secured.
He also told Channel 2 there was a memory card that collects citizen votes loose in the office.
More information is available here.